In 1983, on Apple ][+ machines, I can confirm that I definitely saw R-rated pictures of women on monochrome screens via unapproved software running on our compu

In 1983, on Apple ][+ machines, I can confirm that I definitely saw R-rated pictures of women on monochrome screens via unapproved software running on our computers at the high school I was attending. But we were more likely to get kicked out of the computer lab for playing unauthorized computer games than for porn. We were a weird bunch of kids.